Two-piece crucible cover



FIG. 1 is a front, right, perspective view of a two-piece crucible cover showing my new design.

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a front end view thereof;

FIG. 7 is a back end view thereof;

FIG. 8 a front, right, perspective view thereof, shown on top of a crucible;

FIG. 9 is an enlarged, left side, partial view thereof, taken from FIG. 4, showing the two-piece cover insert in a down position; and,

FIG. 10 is an enlarged, left side, partial view taken from FIG. 4, with the two-piece cover insert in an up position.

The broken lines seen in FIGS. 4, 9, and 10 depict the locations and borders of enlarged views, and form no part of the claimed design. 

CLAIM I claim the ornamental design for a two-piece crucible cover, as shown and described. 